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Finding the Fourth Proportional to 27,366.76, 37,766.18 and 15,430.20

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Solution

The fourth proportional to 27,366.76, 37,766.18 and 15,430.20 is: 21,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,366.76 : 37,766.18 = 15,430.20 : x
  2. Step 2: Convert to fraction form
    27,366.76/37,766.18 = 15,430.20/x
  3. Step 3: Cross multiply
    27,366.76x = 37,766.18 × 15,430.20
  4. Step 4: Simplify right side
    27,366.76x = 582,739,710.64
  5. Step 5: Solve for x
    x = 582,739,710.64/27,366.76
  6. Step 6: Final answer
    x = 21,293.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.